20% Protein 5% Fat 2% Fiber This nutritionally formulated supplement is designed to complement different low protein forages. This unique supplement is second to none when compared to other low-moisture blocks. This block is the product of a state of the art patented process that provides a unique 24-hour feeding system. Range 20 MF is an exceptionally dense all-weather block that will give you the most for your money. Altosid IGR is proven to break the life cycle of profit-robbing horn flies, Altosid? feed through fly control is the long-term fly control solution for livestock on pasture.